The Effect of canal obturation according to the depth of the System B Plugger tip in the Type IV canal.
10.5395/JKACD.2008.33.6.518
- Author:
Hee Won CHOI
1
;
Soo Mee KIM
;
Ho Keel HWANG
Author Information
1. Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea. rootcanal@hanmail.net
- Publication Type:Original Article
- Keywords:
Depth of the System B Plugger tip;
Type IV canal;
Obturation;
Continuous Wave of Condensation technique
- MeSH:
Dental Pulp Cavity;
Glass;
Gutta-Percha;
Nickel;
Titanium
- From:Journal of Korean Academy of Conservative Dentistry
2008;33(6):518-525
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to evaluate the effect of the apical sealing according to the depth of the System B Plugger tip when root canal was filled with gutta-percha and sealer by Continuous Wave of Condensation technique in the Type IV canal. 50 simulated resin blocks with J-shaped curvature canals were instrumented by ProTaper (Dentsply Maillefer, Ballagiues, Switzerland) Ni-Ti files using the crown-down technique. Type IV canals were made using a broken ProTaper F3 Ni-Ti file for making a ledge at 3mm short from the working length. And ProTaper F1 Ni-Ti file was used for perforating resin block. The prepared Type IV canals were randomly divided into three experimental groups of 15 each according to the depth of System B Plugger tip. All of experimental groups were obturated with Continuous Wave of Condensation technique. The length of gutta-percha and sealer in lingual of the Type IV canals was measured with a measuring digital calliper under magnifying glass (x 2.3). The results are as follows : 1. In control group, there was no gutta-percha and sealer in lingual canal. 2. 3 mm group showed relatively more gutta-percha than 5mm or 7 mm group (p<0.05). 3. 7 mm group did not showed gutta-percha and relatively more void were observed than 3mm or 5 mm group. (p<0.05) In conclusion, within the limits of the results of this experiment, the 3 mm depth of System B Plugger tip was acceptable for obturating the Type IV canal.
